254adbf5a6bda4bf9d5b961f8a97b304dd54825a91e7e71657b72d29bed46095

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
10/06/2024, 06:39

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-06-10_2c4f2165fa102387d39662375c5e8b2c_cryptolocker.exe
Size

64KB
MD5

2c4f2165fa102387d39662375c5e8b2c
SHA1

0a8cc67e699f499cb7e1d5f444850b524cfa5d24
SHA256

254adbf5a6bda4bf9d5b961f8a97b304dd54825a91e7e71657b72d29bed46095
SHA512

0da09c5dd1f8ffd8d122db00f14adf9d3e756e8f90a81bd5e5b855e8910047ed337b2c630d41832f617e50b85a1492677d03781f4b958bc993864cc520d41ede
SSDEEP

1536:qmbhXDmjr5MOtEvwDpj5cDtKkQZQRKb61vSbgtsiD:BbdDmjr+OtEvwDpjM8+

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral2/memory/2512-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/files/0x000d000000023383-13.dat	CryptoLocker_rule2
behavioral2/memory/2512-18-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral2/memory/1288-27-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 2 IoCs

resource	yara_rule
behavioral2/memory/2512-18-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral2/memory/1288-27-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral2/memory/2512-0-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral2/files/0x000d000000023383-13.dat	UPX
behavioral2/memory/2512-18-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral2/memory/1288-27-0x0000000000500000-0x0000000000510000-memory.dmp	UPX

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	2024-06-10_2c4f2165fa102387d39662375c5e8b2c_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
1288	asih.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2512 wrote to memory of 1288	2512	2024-06-10_2c4f2165fa102387d39662375c5e8b2c_cryptolocker.exe	84
PID 2512 wrote to memory of 1288	2512	2024-06-10_2c4f2165fa102387d39662375c5e8b2c_cryptolocker.exe	84
PID 2512 wrote to memory of 1288	2512	2024-06-10_2c4f2165fa102387d39662375c5e8b2c_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-06-10_2c4f2165fa102387d39662375c5e8b2c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-10_2c4f2165fa102387d39662375c5e8b2c_cryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2512
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1288

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
64KB

MD5
2e68337b84a99c5f5c36d65e636e74af

SHA1
1b4e94a6cc234cf1a1e4484eb41b5a2db1a39897

SHA256
f4788e446899e992aba4e02edc34d921a4d4043a19723810e076035b8976609f

SHA512
b311ae7ff60c85a5290ed59d114f08ce7a93d6167ed74c4f9c82a950e8d8229fe326e54509d2efb1ce7bf9e5ae22aff3a4eb7c0d1567ba491d9c8e727961d9e3

Download Submit
memory/1288-20-0x00000000007D0000-0x00000000007D6000-memory.dmp

Filesize
24KB

Download
memory/1288-26-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/1288-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2512-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2512-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/2512-2-0x00000000006D0000-0x00000000006D6000-memory.dmp

Filesize
24KB

Download
memory/2512-9-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/2512-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download